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Finding the Fourth Proportional to 101,015.36, 139,403.04 and 56,298.56

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Solution

The fourth proportional to 101,015.36, 139,403.04 and 56,298.56 is: 77,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015.36 : 139,403.04 = 56,298.56 : x
  2. Step 2: Convert to fraction form
    101,015.36/139,403.04 = 56,298.56/x
  3. Step 3: Cross multiply
    101,015.36x = 139,403.04 × 56,298.56
  4. Step 4: Simplify right side
    101,015.36x = 7,848,190,411.62
  5. Step 5: Solve for x
    x = 7,848,190,411.62/101,015.36
  6. Step 6: Final answer
    x = 77,693.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.